Signors to the clark-howard excavator and conveyor com



2 Sheets-Sheet 1.

E. L. CLARK & L. D. HOWARD.

SHIFTING DECK FOR DUMPING scows.

Patented Oct. 15, 1889..

(No Model.)

INVENTORS.

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(No Model.) u 2 Sheets-Sheet 2. E. L. CLARK & L. D. HOWARD.

SHIFTING DECK FOR DUMPING snows. No. 418,030. Patented Oct 15, 1889.

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EDDY L. CLARK AND LYMAN D. HOWARD, or BROOKLYN, NEW YORK, AS

SIGNORS TOTHE CLARK-HOWARD EXOAVATOR AND CONVEYOR ooM- PANY, OF NEW JERSEY.

SHIFTING DECK FOR DUMPlNG-SCOWS.

SPECIFICATION forming part of Letters Patent No. 413,030, dated October 15, 1889.

Application filed July 24, 1888. Serial No. 280,941. (No model.)

To all whom it may concern.-

Be it known that we, EDDY L. CLARK and LYMAN D. HOWARD, citizens of the United States, and residents of Brooklyn, State of 5 New York, have invented a new and Improved Shifting Deck or Floor for Vessels, of which the following is a full, clear, and exact description, reference being had to the annexed drawings, making part hereof.

1o The nature of our invention will fully appear from the following specification and claims. Its object is to facilitate the rapid unloading of deckloads and cargoes from vessels.

I 5 In the drawings, Figure 1 is a vertical crosssectional view of one form of our apparatus, showing the endless conveying-chains actuated by a sprocket-wheel on the shaft, oinitting the shaft L with its sprocket-wheels and the endless chains; Fig. 2, a similar view show ing side pockets to receive the shifting flexible deck or floor and protect it from the action of the waves, and also the supporting or carrying chains; Fig. 3, a plan view showing part of the tarpa'ulin which covers the deck broken away; Fig.4., a'perspective view of a link of one of the carrying belts or chains, with the track or guide and roller; Fig. 5, a vertical. cross-section on the line V V of Fig.

0 l; Fig. 6, a perspective view of parts of two links, showing the link-coupling block and its two flanges to be attached to the deck or floor planks; Fig. 7, a cross-sectional view on lines a; 00 of Fig. 6, a portion of the deck- 13 5 board also being shown; Fig. 8, a part crosssectional view of Fig. 0, showing the side of plank Q. 7

A is the hull of the vessel, and A A supports or braces in the interior of the same to sustain the shafting.

B are the lateral guides or tracks for the chains. r

C C are two half-decks divided longitudinally and each provided with a back D D at the edges adjoining the line of division of the two half-decks; E, a longitudinal shaft traversing the whole middle length of the shifting deck below the same. This shaft is supported at intervals by uprights A, which also sustain the guides B B. These guides also serve to sustain the decks. This shaft at one end is provided with small sprocketwheels F F, (acting as a pulley,) and terminates outside this wheel in a polygonal stud F which may be driven by a cran k, by hand, 5 5 or by a belt and pulley or gearing from an engine. The latter may be located at either end of the shaft, fore or aft, or beneath the shift ing deck. Two longitudinal shafts G G are located outboardthat is, one immediately outside the upper outer line of the hull, upon which are located sinall sprocket-wheels H H I I, which engage with the various chains L L are large sprocket-wheels located on shaft L. a

M M are large sprocket-wheels on the end of shafts G G to drive the latter.

M M." are sprocket-chains passing over large wheels M- M' and small sprocket wheels F F". The belt M is crossed, so. as to impart a motion to wheel M the reverse of that given to wheel M N N are tarpaulins or heavy sheets of textile or other suitable fabric, each secured at 7 5 one end to the back D or D, and at the other end, when side pockets are used, to the outerupper *ed'gefof the pockets, respectively.

0-0 are outer pockets closed below and secured at the sides of the vessel, of a length a trifle greater than the width of the shifting deck, "and each one is adapted to receive the shifting half of the deck on its side, the tarpaulin or sheet N falling and doubling over the outside, as shown in Fig. 2. These pockets are employed to protect the shifted deck from the action of the waves. hen these outer pockets are not used, the outer ends of;

the tarpaulins are left to fall freelydnto-the water, as in Fig. 1. The outer end "ofneach o shifting half of the deck is secured tc-the outer upper edge of the vessel by ordinary hingesPP. The endless chains J J pass over the sprocket-Wheels L and H, andeach inner edge of the shifting half of the deck is se- 5 cured to these endless chains at points (when the decks are in place) immediately above thewheels L L. The carrying-chainsK K- are each of a length equal to the half-deck to h'it is conn cted, and he ends of said chain are connected to the ends-of said decks.

Belts M, M, and J J are the driving-belts of the various shafts, and K K are the carrying-belts, though the belts J J are also fastened, as above described, to the decks to draw them back into place after dumping the load of garbage. The turning of shaft E operates to unload each half-deck over the side, as motion of them toward the outboard is simultaneous.

The half-decks G O are composed of slats or floor-planks Q Q, laid side by side in sece h s n being about w nty eet long. Thus the deck maybe eighty feet long, composed of four twenty-foot sections. Each shaft G and L extends beneath the whole length of deck, and each tarpaul in covers the whale length of deck in one unbroken piece, to cover the joints between the sections and fioer. planks er bars independent of each other, and. the ha ns a s r to t e par o these haltdecks above named y ars R F gs. 6 and hic pr j c a e lly m the e unline'blo ks w en the inks, which ears are secured by screws or bolts to the. Planks r ba (S e n do e ines.

" Fig.

S S a rel e blcc s e n th p n links a interva and are p o with o er S Sf, which rest on the upper edges of the guide troughs or tracks B B. The lower edges of blocks S S set down into these troughs, and

' e tical plane Qur device is designed especially fordumping garbage, and though in the drawings only one-half of the deck is shown as having been shifted, both halves are, in fact, shifted at the same time, so as to avoid the danger of dumping the scow. Itmay be used for dumps san s n r s -J ing and the purp Theopelation is as follows: We will suppose each half of the deck to be in position, is shQWn t0. the right in Figs. 1, 2, and 3, and that the scow or vessel is carrying a deckload of garbage to be dumped. By applying I power. to the) stud F the wheels FF are gage, and the shifting halves O Oof the deck will be drawn toward the sides of the vessel. The inner edges of each half deck will draw the backs D and D, respectively, with them,

thus preventing the load from spilling into the hold of the vessel, and the tarpaulin will prevent it filling the joints in the decks. As the outer movement of the decks iscontinued, the load will be dumped over each side si multaneously and each half-deck will be in the position shown to the left in. the first three figures. In order to return the cleared decks to place, the motion of stud F is reversed, and the endless chains J J, being attached each at one point to the inner edges of the decks, will gradually draw the decks, chains K K, and the tarpaulins into their original positions. It will be observed that the two ha f-d ck have a pitch from th mi dle of the vessel downward toward the sides.

The greater this incline is madethe more easy will be the movement of the loadeddecks toward the sides. Less power will be required to move them. We do not confine ourselves to the particular forms of chain belting showm Of course the deck planks or bars are made of wood, iron, or othersuitable material The ck D push the load e o e hem s the deck moves. It is evident that though shaft E is set in the middle to drive both sets f mechanism, power applied to either shaft G or L wonld operate the shifting mechanism on its side of the device. The block S, projecting downward below the edges cf the track B, acts as a guide to the chain, and the rollers S serve as friction-rollers to facilitate the movement of the superincumbent deck. The guide=tracks B B are'slanted downwardly toward the side of the vessel over which the load is to be dumped, thus facilitating the movement of the heavy load toward that point. To guard against the inner edges of the shifting decks breaking away from their Q Q, attached to laterally-moving chain drivebelts -J J, and to carrying-belts K K, wheels H I L, to carry said belts, and shafts G L, to drive the wheels, all actuated by power applied to one of said shafts, substantially as described.

2, A vessel provided with a laterally-shift ing flexible deck in two longitudinal separate halves, formed of planks or bars and adapted to move in opposite directions toward the sides of the vessel, each half being provided with belts J J K K, attached to the under side of the deck, substantially as described,wheels H I L, shafts G L, said shafts actuated by power applied to one of them under each half of the deck to drive its half in a direction opposite to that of the other half, whereby the deck-load is dumped equally and simultaneously on both sides, substantially as set forth.

3. A vessel provided with a laterally-shifting flexible deck composed of planks or bars Q Q, attached to laterally-moving belts J K, wheels H I L, to carry the belts, shafts G L,

' to one of which power is applied to drive the wheels, and tarpaulin or sheet N, to cover the joints of the deck, substantially as described.

4. .A vessel provided with a laterally-shifting flexible deck composed of planks or bars Q Q, attached to laterally-moving belts J K, wheels H I L, to carry the belts, shafts G L, to one of which power is applied to drive the wheels, and side pocket 0, to receive the flexible deck as it drops over the side, substantially as described.

5. A vessel provided with a laterally-shifting flexible deck composed of planks or bars Q Q, attached to laterallyrmoving belts J K, wheels H I L, to carry the belts, shafts G L, to one of which power is applied to operate the mechanism, and back D, attached to one edge of the shifting deck, substantially as described.

6. The combination, with the shifting deck 0, of chains J K, provided with blocks S and rollers S, adapted to engage with and upon the guide-track B, to facilitate the movement of the deck and to guide the chain, substantially as described.

7. The combination, with the shifting deck 0, of chains J K, provided with blocks S, with side rollers S, attached thereto, and troughshaped guide-track B, said blocks projecting downwardly between the sides of the trough to guide the chain in its traverse, and said rollers S impinging upon said track to facilitate the movement of the superincumbent deck, substantially as described.

8. The combination, with the shifting deck C, of chains J K, provided with blocks S and rollers S, and guide-track B, slanted downwardly toward the side over which the load is to be dumped, substantially as described.

9. A vessel having a rotary driving-shaft extending lengthwise of the hull thereof, with sprocket-wheels thereon, parallel shafts to said driving-shaft, having sprocket-Wheels thereon, sprooketrchains connecting said driv ing-shaft to said side shafts, and shifting decks operated by the rotation of thedriving and side shafts, said parts being combined substantially as described.

10. A vessel providedwit-h a laterally-shifting flexible deck composed of planks or bars Q Q, attached by-sorews, bolts, or rivets to laterally-moving chains on sprocket-wheels, shafts G L, and actuating-shaft E, said parts being combined substantially as described.

11. A vessel provided with a laterally-shifting flexible deck composed of planks or bars Q Q, attached by screws, bolts, or rivets to laterally-moving chains on sprocket-wheels, shafts G L, and actuating-shaft E,'said deck being secured at its outer edge to the edge of the side of the vessel, whereby it will loop up as it falls over the side in dumping, substan tially as described.

12. A vessel having a driving-shaft journaled in the hull thereof, shafts journaled in the sides of said hull, sprocket-wheels on said driving and side shafts, other shafts parallel to said shafts, having sprocketwvheels there; on, endless chains connecting last-mentioned shafts with the side shafts, and sprocketchains connecting the driving-shaft with the side shaft, and flexible decks connected to said endless chains, said parts being com-. bined substantially as described.

13. A vessel with a central shaft having bearings and provided with sprocket-wheels, shafts at the sides of the vessel with sprocket-wheels thereon, shafts near the drivingshaft, also having sprocketwheels, sprocketchains connecting said driving-shaft and side shaft, and endless belts connecting said side shaft's with the shafts near the driving-shaft, flexible decks hinged to the side of the vessel and connected to said endless belts, said parts being combined substantially as described.

14. A vessel having flexible half-decks with backs at their inner ends, and endless belts with rotating shafts, the said decks being secured to said belts, the said parts being combined substantially as described.

EDDY L. CLARK. LYMAN D. HOWARD. Witnesses:

WM. RANNEY,

LEO SCHWAB. 

